be able to establish oneself at thirty; thirty years of age when a man should stand on his own feet
人在三十岁左右开始成熟,可以自立于社会,有所成就。
复句式;作分句;指三十岁
指人在三十岁前后有所成就。
《论语·为政》:“吾十有五而志于学,三十而立。”
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